Feed-water purifier.



No. 7I6.399. Patented Dec. 23, I902.

C. E. FEBBEIBA.

FEED WATER PURIFIEB.

(Application filed Nov. 9. 1901.) (No Model.)

WI TNESSES M Jwwemi INVENZOR HER/"rel r0 m: uoams PETERS co. PHOTO-LITHO, msmumon. o. c

ill-"ran PATENT OFFICE.

CHARLES E. FERREIRA, OF CHICAGO, ILLINOIS.

FEED WATER PU RIFIER.

SPECIFICATION forming part of Letters Patent No. 716,399, dated December 23, 1902.

Application filed November 9,1901. Serial No. 81.660. (No model.)

To all whom it may concern:

Be it known that I, CHARLES E. FERREIRA, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Feed -Water Purifiers, of which the following is a specification.

This invention relates to purifiers for purifyin g the water for steam-boilers and in which live steam is employed as the heating agent, and is designed to provide a construction which can be easily kept free of sediment and which shall also be efficient and convenient in its operation.

In my invention I employ a tank or vessel separate from and exterior to the boiler, and in this tank I place a series or courses of pipes connected to the water supply and through which the water moves on its way to the boiler. These pipes are heated by live steam from the boiler admitted to the interior of the tank, where it surrounds the pipes, and thus heats the water to a high temperature and causes the precipitation in the pipes of the impurities in the water. The pipes have also a connection through which the steam may be admitted to them as often as may be necessary to blow out the precipitated matter, the water supply and discharge pipes being closed and the sediment-discharge pipe being opened at such times.

1 find by my use of this purifier that it ma be kept clean indefinitely by simply blowing out the pipes at proper intervals, so that the purifier when once positioned needs no other care and no opening up or repairs, and the purifier is as efficient in its action on the water as any previous construction of purifier of which I have any knowledge.

The invention will be more fully understood from the description given below and from the accompanying drawings, in which-- Figure 1 is a perspective of my improved' purifier and its connections to the boiler. Fig. 2 is a longitudinal section of the purifier, and Fig. 3 is a vertical section of the same. Figs. 4 and 5 are vertical sections of a modified construction.

In said drawings, 10 represents the Watersupply pipe connecting with the courses of pipe within the purifier and having a valve at 11, whereby the water may be cut off when the pipes are to be blown out. A pipe 12, connecting the supply-pipe directly with the boiler, is preferably provided for use when charging the boiler at starting and when the purifier is not in service, and a valve 13 is provided in pipe 12 and keeps the same closed when the purifier is operating.

The purifier consists of a suitable closed tank or cylinder 14, located in any convenient and suitable position adjacent to and out-side the boiler, and several courses of water-pipes 15 in the tank, adapted to be heated by steam admitted to the inside of the tank. The tank is connected to the boiler or to the drum 16 thereof by a pipe 17, having a valve 18, and by such connection dry hot steam for heating the pipes is conducted from the boiler to the interior of the tank, where it comes in contact with and surrounds the pipes, thereby heating them to a high temperature and causing the precipitation of the impurities. The water-supply pipe 10 effects a junction with the initial one of the courses of pipes 15, as best shown at Fig. 2, and the water flows from the latter through the several pipecourses in succession and passes out from the purifier by the pipe 19, connecting with the final course or heating pipe 15. This discharge-pipe 19 effects a junction with a pipe 20, leading to the boiler, as clearly shown, and a valve 22, adapted to be closed when the pipes are being cleared out and when the purifier is out of service, is placed in the water connectionsbetween the purifier and the boiler, as also shown. The blow-off pipe is shown at 23 and is joined to said water connections at some point above valve 22. It is provided with a valve 24.

When the pipes 15 are to be cleared of the precipitated matter, the valves 11 and 22, which are normally open when the purifier is in service, are closed and the valve 32 in the pipe. 33, receiving live steam from the boiler and connecting with pipe 10, is opened, as is also valve 24. This gives the steam opportunity to drive out all accumulations of sediment in the pipes 15, as well as from other parts of the apparatus,so that all may be kept perfectly clean by simplytak ing care that these cleansing-operations are repeated with sufficient frequency, depending, of course,

upon the amount of sediment in the water.

The courses of purifying-pipes 15 may be connected at their ends by unions or returnbends 25, as in Fig. 1, or they may be joined to manifolds or headers, as in the other figures. These headers are provided with suitable partitions adapted to direct the water from one course to another of the pipes 15, and they may be adapted to allow for the contraction and expansion without injury. I have illustrated at Figs. 2 and 3 a waterreceiving header at 26, connected to pipe 10, a waterdischarging header at 27,connecting with pipe 19, and headers 28, connecting the courses together, as will be understood from the arrows. Modified forms of header are shown at Figs. 4 and 5, Fig. showing the header at one end and Fig. 5 that at the other end. These headers 34 and'35 are each made in one piece, with partitions 36 and 37 in one and 38 in the other, and the water moves back and forth between them, as indicated by the arrows. The waterheating pipe or pipes may be of the same size as the supply-pipe and all the water be sent through all the members of each course successively, this construction being illustrated at Fig. 1; but the pipes may be made smaller than the supply-pipe in order to facilitate the action of the steam upon the water in them, and they are shown as smaller in the other figures, the headers there shown being readily adapted to receive any desired number of the smaller pipes. As illustrated, each course consists of two companion pipes,each of which pipes has half the capacity of the supply-pipe; but obviously the stream of water may be further subdivided or not divided at all, as desired.

The boiler is indicated at 29, and the condensations from the steam in the purifier are conducted away by a pipe 30, which may have a cut-off valve 31. This pipe may go back to the boiler or to any other point. V

While the construction shown is perfectly practical and is recommended, it will be understood that I do not wish to be limited to the details thereof not made essential by the claims, nor do I wish to be limited to a purifier arranged horizontally, nor to heating pipes arranged in vertical series, nor to the number of pipes in each course or'layer of the heating-pipes.

I claim--- 1. The combination with a steam-boiler of a water-purifier consisting of an inclosed tank or vessel having a steam connection to the boiler,courses of water-pipes within said tank and heated by the steam therein said pipes being joined together so that the water may flow through them successively and having valved connections to the water-supply, and the boiler, a valved blow-off pipe,and a valved connection between the tank water-pipes and the steam-holding parts of the boiler,substantially as specified.

2. The water-purifier consisting of an inclosed tank or vessel having a live-steam connection, courses of water-pipe within said tank and heated by the steam therein, and joined together so that the water may flow through them successively, a valved blow-off pipe, valved connections between said waterpipe and the water supply and discharge, and a valved connection between the water-pipe and a source of steam-supply, substantially as specified.

3. The water-purifier consisting of an inclosed tank or vessel having a live-steam connection, courses of water-pipe within said tank and heated by the steam therein, and joined together so that the water may flow through them successively, a valved blow-off pipe, a valved connection from a source of water-supply to the initial course of saidwater-pipe, a valved discharge connection taking the water from the final course of said pipe and a valved connection between the initial course of said pipe and a source of steamsupply, substantially as specified.

CHARLES E. FERREIRA.

Witnesses:

EDW. S. EVARTS, H. M. MUNDAY. 

